#665DF4#665DF4

#665DF4 is a mid, highly saturated blue. Relative luminance 0.172; OKLCH L 57.5% C 0.218 H 279.7°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#665DF4
RGB	rgb(102, 93, 244)
HSL	hsl(244, 87%, 66%)
HSV	hsv(244, 62%, 96%)
CMYK	cmyk(58.2%, 61.9%, 0%, 4.3%)
CIE-LAB	lab(48.49, 45.42, -74.78)
CIE-LCH	lch(48.49, 87.49, 301.28°)
OKLab	oklab(57.48% 0.0367 -0.2151)
OKLCH	oklch(57.48% 0.218 279.7)
XYZ	xyz(25.7178, 17.1833, 87.5319)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DF4 #EBF45D

analogous

#5D9FF4 #665DF4 #B15DF4

triadic

#665DF4 #F4665D #5DF466

tetradic

#665DF4 #F45D9F #EBF45D #5DF4B1

square

#665DF4 #F45D9F #EBF45D #5DF4B1

split-complementary

#665DF4 #F4B15D #9FF45D

monochromatic

#190EC9 #3024F0 #665DF4 #9C96F8 #D2D0FC

Accessibility & contrast

On white

4.73

#665DF4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#665DF4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DF4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DF4	#FFFFFF	#000000	##FFFFFF
##665DF4	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079F9

Deuteranopia (green-blind)

#006DF1

Tritanopia (blue-blind)

#0082A0

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #665df4;
/* rgb */ color: rgb(102, 93, 244);
/* oklch */ color: oklch(57.5% 0.218 279.7);

Tailwind

colors: {
  custom: {
    50: '#9e8bf9',
    500: '#665df4',
    950: '#000000',
  },
}

SCSS

$custom: #665df4;
$custom-light: #9e8bf9;
$custom-dark: #000000;

JSON

{
  "hex": "#665df4",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 244
  },
  "hsl": {
    "h": 243.576,
    "s": 87.283,
    "l": 66.078
  },
  "oklch": {
    "l": 0.57477,
    "c": 0.21818,
    "h": 279.7
  },
  "luminance": 0.17185
}

Semantic roles & 50–950 ramp

primary

#665DF4

secondary

#ECEFBE

accent

#E402D6

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665DF4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →